Finding the Fourth Proportional to 135,328,618.42, 186,755,285.04 and 73,449,698.74
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Solution
The fourth proportional to 135,328,618.42, 186,755,285.04 and 73,449,698.74 is: 101,361,556.66
Step by Step Solution
- Step 1: Write the proportion equation
135,328,618.42 : 186,755,285.04 = 73,449,698.74 : x - Step 2: Convert to fraction form
135,328,618.42/186,755,285.04 = 73,449,698.74/x - Step 3: Cross multiply
135,328,618.42x = 186,755,285.04 × 73,449,698.74 - Step 4: Simplify right side
135,328,618.42x = 13,717,119,424,290,828 - Step 5: Solve for x
x = 13,717,119,424,290,828/135,328,618.42 - Step 6: Final answer
x = 101,361,556.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.